Two-station printing press



May zo, 1924@ 1,494,702

L. M. PAGE ET A| I TWO-STATIQN PRINTING PRESS 'Filed Maron 24, 192s e sheets-sneer 1 Inventors, A Ie sz'eMPfge "4-`-` lozsltycwh;

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UNITED STATES LESLIE M. PAGE, OF MAPLEWOOD; NEW JERSEY, VAND LOUIS MEYLACH, OF BROOKLYN,

PArsm Tornos.

NEW YORK. Y

TWO-STATION PRINTING PRESS.

Application med March 24, Y1923. serial No. 627,273.

T0 all whom t may concern.:

Be it known that we, LESLIE M. PAGE and LOUIS lVLEYLACH, citizens of the United States, and residing, respectively, atMaplewood, in the county of Essex and State of New Jersey, and at New York, borough of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements'in Two-Station Printing Presses, of which the following is a speciication.

This invention relates to two-station printing presses and has for its object to provide a printing press of the class speciiied, simple in construction and efficient in operation.

The general character of printing press to which our improvements are applied is illustrated as of the bed and platen'type, wherein the form carrier is oscillated through a slight angle in approximately vertical position, to-

from l which the platen is oscillated. The Chandler and Price press is a familiar type of this style of press. It will be understood that our improvements are not limited in their application to any particular make or style of press but are of vbroad application to bed andplaten presses in general. f Y With these ends in view our improvements comprise features illustrated in the drawings accompanying this specification, wherein Figure 1 is a side elevation of so much of a printing press of the character described as will suffice to illustrate our improvements. Figure 2 is a plan view corresponding with what is shown in Figure 1.v Figure 3 is a fragmentary sectional elevation on line 3-3 of Figure 1. The scale of all the iigures is the same. y Y s Our improvements are illustrated as applied to a two-station or double color press, wherein two forms .2, 40 are mounted by known means side by side on form carrier 4. The carriage 5 is mounted for transverse reciprocation on platen 6 and is retained thereon by gibs 7, 7. Said platen is oscillated on shaft 8 and `is actuated from known means, not shown, through link 9. Stops 10, 1.1 are provided near oppositefedges of'platen 6 to limit the movement of carriage 5. AWheel A12, fixed to shaft 13 makes one rotation for each cycle of movement of platen 6 to and from form carrier 4, by known means, not

' shown. Pivotally mounted on the` lower edge of carriage-5 are the usual grippers 14,314

for holding a sheet, as 15,.against theface 'of said carriage. vSaid'grippers are. xed vto shaft 16 and may be spring urged to engagef ment with sheetk15. For lifting said grippers there is provided at one side of the machine iixedcam 17 extending upwardly from i side frame 180. Fixed toshaft 16 is downreaching arm 19V having pin 20 extending therefrom for engagement with said cam 17. For causing carriage 5 to reciprocate transversely on platen 6 the following means are provided: Projecting rearwardly and downwardly from the upper end of carriage 5 is cam 21, arranged substantially concentric with shaft 8. Said cam has opposite operative faces 21, 21", meeting at their lower .ends 21c in a wedge like point. For engagement with said camv alternately on faces-21a, 21b,lis cam roll 22 rotatively mounted. on pin 23 xed in the forwardly projecting end of arm 24. Said arm is fixed to slide 25, mounted -for transverse movement ingibbed ways'26, 27 of cross bar 28 fixed to side kfra-mes 18, 180.'V For causing said slide 25 to 'reciprocate transversely of the machine, crank 29, pivoted on stud 30, xed

in crossb'ar 28Y and near that end thereof.

movement imparted thereto by crank' 29, forl purposes which will appear'later herein.

Einbodied with crank 29' is starwheel 35 having an even lnumber of teeth, as four. Said starwheel is located in tangential relation to wheel .12, Fig. 1, and in position to have its teeth engagedbyv peripheral Apins 36', 37, respectively,iof said wheel, vas said wheel rotates in clockwise direction, Fig.` 1. The operation of ourvv improved machine is as follows: The parts being in the relative positions of Figs. 1 and 2, with carriage 5 against stop pin 10 of platen 6, a sheet 15, to be printed, is, placed on the4 face of said carriage, rwhere it may be located by the usual gage pins ifdesired. The press now being started, platen 6 swings'toward form carrier 4 Vand grippers 14 are released byV cam 17 and Vclose down onto the edges of sheet 15, thereby holding said sheet securelyoncarriage 5. It will he understood that position in said Figj2.

the press is equipped with suitable means Afor inking forms 2, 110, of known character,

f carrier 4f, pins 36, 37 on wheel 12 are moved into successiveengagement with successive teeth of starwheel 35 there-by imparting to that wheel and to crank 29, a half revolution. This half revolution, through link 33, moves slide 25 and cam roll 22 toward frame 180 of the machine. The new location of said'cam roll is shown in dotted lines in Fig. 2, and when said roll is thus positioned, pin 32 is against that end of elongated hole 34 nearest pin 31, which allows pin 32, slideV 25 and cam roll 22 to be moved a slight distance farther toward side frame 180 as hereinafter referred to. Sheet 15 on carriage 5 having made its contact with form 2 and received its impression therefrom, platen 6 now commences to swing back away from form carrier 4 and directly thereafter face 21b of cam 21 engages ro-ll 22 (dotted `position Fig. 2) whereby roll 22 is forced slightly toward frame 180 until slide l 25 strikes abutment 38 and pin 32 moves to the middle of elongated hole 34 in link 33. By this arrangement link 33 and crank 29 are relieved of all strain of operating cam 21, vthat strain being taken by abutment 38. Upon the further swinging back of platen 6.v carriageY 5 is forced transversely toward side frame 18. x

The ,transverse movement o-f carriage 5 .progresses sufliciently to carry pin out of engaging relation with cam 17 before said pin encounters the operative portion of said cam,- whereby grippers 14, 14v continue Vto maintain their gripping action `of sheet 15 I against carriage-5. -As platen 6 continues to swing backw-ardly, rolly 22 is engaged by the higher portion of cam face 21h, thereby moving carriage 5 finally against stop 11 Vnear frame 18, whereby the first-impression on sheet 15 on said carriage is brought into .y position to register `with the second form, 40.

-During the next rotation of wheel 12,

.platen6 swings up to meet form carrier 4,

and pins 36, 37 engage starwheel 35, thereby :rotatingthat wheel a half revolution. This Vcauses crank 29 to move slide 25 toward frame 18 close to abutment-39, .that end of elongatedhole 34 lin. link 33 nearest frame 18,0 engaging pin 32 of slide 25, whereby roll and face 21a of cam 21 engages roll 22 and forces slide 25 against abutment 39 and pin 32vto the middle of elongated hole 34- in link 33 thereby relieving the strain on link 33Y and crank 29. Carriage 5 is thus caused to reciprocate toward frame 180 until it encounters sto-p 10. As carriage 5 movestoward frame 180; pin-20 again passes under cam 17, and as platen 6 swings backwardly tothe position of Fig. 1, saidpin engages said cam and grippers, ltare lifted from sheet 15. Said sheet now having received two impressions in register and having been returned to its iirst position may be removed. and a new sheet substituted for a repetition of the operation. A Y

It will be understood that, while we m-ay omit the lost motion connection between the end of link 33 and pin 32, by careful and accurate adjust-ment of the relation between cam 21 and roll 22, nevertheless the mechanism` works with less pounding and with greater accuracy of register by employingV said lost motion connection and by throwing the strain against abutments 38,39, relieves link 33, crank 29 and starwheel 35 of all strain incident to the shifting of carriage 5.

We claim: 1. In a printing press of Vthe character described Vthe combination of ail platen, a

carriage mounted for transverse movement on said platen, a form carrier-adapted' for supporting two forms ad]acentlyr arranged l transversely of the press, a two faced-cam fixed to said carriage, a roll adaptedffor alternate engagement with said cam faces,

and means operable during each cycle Aof `roll carried by said slide, and means operable during each cycle of movement offsaid press for causing `said slide to` shift said roll from engaging relation with one ofsaid cam faces .into engaging relation with the other of said cam faces. 3. In a printing press of the Vcharacter describedV the combination of a platen, a carriage mounted for transverse movement on said platen, a form carrier adaptedfor supporting two forms adjacently .arranged` transversely of the press, a two faced cam fixed to said carriage, a" slide mounted for movement transversely of said platen, a roll carried by said slide, means for causing said slide to shift said roll from engaging relation with one of said cam faces into engaging relation with the other of) said cam faces comprising a wheel which makes one rotation for each'cycle of movement of said press, a crank and a starwheel operably connected, means on said wheel for engagement with said starwheel adapted for rotating said starwheel one-half revolution for each rotation of said wheel, and a link connecting said slidev and said crank.

a. In a printing press of the character described the combination Vof a platen, a carriage mounted for transverse movement on said platen, a form carrier adapted for sup-porting two forms adjacently arranged transversely of the press, a two faced cam fixed to said carriage, a slide mounted for movement transversely of said platen, a roll carried by said slide, means for causing said slide to shift said roll from engaging relation with one of said cam faces into engaging relation with the other of said cam faces comprising a wheel which makes one rotation for each cycle of movement of said press, a crank and a starwheel operably connected, means on said wheel vfor engagement with said starwheel adapted-for rotating said starwheel one-half revolution for each rotation of said wheel, and a link connecting said slide and said crank, said link having a lost motion connection at one end thereof. v

5. .In a printing press of the character described the combination of a platen, a carriage mounted for transverse movement on said platen, a form carrier adapted for supporting two forms adjacently arranged transversely of the press, a slide mounted for movement transversely of said platen, a two faced cam and a roll for alternate engagement with said cam fac-es interposed between said slide and said carriage, means governed by said slide for shifting the relation of said cam and roll, said cam land roll being adapted for shifting said carriage alternately in opposite directions transversely of said platen, and means 0perable during each cycle of movement of said press for shifting said slide transversely of said platen. Y

6. In a printing press of the character described the combination of a platen, a

carriage mounted for transverse movement on said platen, a form carrier adapted for supporting two forms adjacently arranged transversely of the press, means operable during each cycle of movement of said press for shifting saidcarriage transversely of said platen, a spring actuated gripper pivotally mounted on said carriage, and means operable when said carriage is in one position on said platen for lifting said gripper, said means being inoperable when said carriage is in a position on said platen remote from said first mentioned position.

7. Ina printing press of the character described the combination of a platen, a carriage mounted for transverse movement on said platen, a form carrier adapted for sup-porting two forms adjacently arranged transversely of the press, means operable during each cycle of movement of said press for shifting said carriage transversely of said platen, a spring actuated. gripper pivotally mounted on saidV carriage, a lfixed cam adjacent one side of the press, and an arm carried by said gripper for engagement with said cam, said arm and cam being adapted for lifting said gripper when said arm and cam are in engaging relation, said arm being in engaging relation with Asaid cam when said carriage is atV one`end vof its travel and out 'of engaging relation when said carriage is at the other end oi its travel. c,

In witness whereof, we hereby aflix our signatures this 19 day of March, 1923. 

